diff --git a/renren-admin/src/main/java/io/renren/modules/resource/service/impl/ResourceServiceImpl.java b/renren-admin/src/main/java/io/renren/modules/resource/service/impl/ResourceServiceImpl.java
index 3b1267bb..ec22068e 100644
--- a/renren-admin/src/main/java/io/renren/modules/resource/service/impl/ResourceServiceImpl.java
+++ b/renren-admin/src/main/java/io/renren/modules/resource/service/impl/ResourceServiceImpl.java
@@ -46,6 +46,8 @@ public class ResourceServiceImpl extends CrudServiceImpl<ResourceDao, ResourceEn
 
     @Value("${resource.devModelFilePath}")
     private String delModelFilePath;
+    @Value("${resource.root_url}")
+    private String root_url;
 
     @Autowired
     private ResourceDao resourceDao;
@@ -187,7 +189,7 @@ public class ResourceServiceImpl extends CrudServiceImpl<ResourceDao, ResourceEn
         //String type = request.getParameter("type").toString();
         //Long resourceId = Long.parseLong(request.getParameter("resourceId"));
         //String url = type + "/devModelFile.txt";
-        String url = delModelFilePath + "devModelFile.md";
+        String url = delModelFilePath + File.separator + "devModelFile.md";
         File file = new File(url);
         if (!file.exists()) {
             Exception e = new Exception("文件不存在");